@INPROCEEDINGS{1148Krutz2008, AUTHOR = {Andreas Krutz and Alexander Glantz and Thomas Sikora and Paulo Nunes and Fernando Pereira}, TITLE = {Automatic Object Segmentation Algorithms for Sprite Coding using MPEG-4}, BOOKTITLE = {50th International Symposium ELMAR-2008, September, Proceedings, Zadar, Croatia, Vol. 2 of 2}, YEAR = {2008}, MONTH = sep, EDITOR = {Mislav Grgic, Sonja Grgic}, PUBLISHER = {ELMAR, Croatian Society Electronics in Marine, Zadar}, PAGES = {459--462}, ORGANIZATION = {ELMAR, Zadar}, ADDRESS = {Department of Wireless Communications, Faculty of Electrical Engineering and Computering, University of Zagreb, Croatia}, PDF = {http://elvera.nue.tu-berlin.de/files/1148Krutz2008.pdf}, ABSTRACT = {Object-based video coding, as standardized in MPEG-4 Part 2, can result in superior performance in comparison to common hybrid motion-compensated DCT-based approaches. We consider sprite coding which increases significantly the objective as well as the subjective quality of the coded video. The main challenge of this approach is the pre-segmentation of the video and the video content itself. To apply sprite coding, the input video has to be firstly segmented into foreground and background objects. We evaluate automatic object segmentation methods based on global motion estimation and background sprite generation. These algorithms are evaluated using the standardized MPEG-4 Visual Main Profile (sprite coding).} }